From science fiction to physical reality
Broadcast: Midmorning, 04/16/2009, 10:06 a.m.
Broadcast: Midmorning, 05/14/2009, 10:06 a.m.
A renowned theoretical physicist ponders the possibility of forcefields, time travel, and other themes of science fiction. He says many of these do not violate the laws of physics, and could become reality in the next century.
